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・ Illa de s'Espartar
・ Illa de Tagomago
・ Illa del Mar
・ Illa des Bosc
・ Illa J
・ Illa Martin
・ Illa Meery
・ Illabo
・ Illach
・ Illacme
・ Illadelph Halflife
・ Illadopsis
・ Illaena
・ Illaenidae
・ Illaenula
Illaenus
・ Illaenus crassicauda
・ Illaenus tauricornis
・ Illagolla
・ Illah
・ Illah (disambiguation)
・ Illah Bunu
・ Illahe, Oregon
・ Illahee State Park
・ Illahee, Washington
・ Illaksan
・ Illallah
・ Illalu
・ Illam
・ Illam (film)


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Illaenus : ウィキペディア英語版
Illaenus

''Illaenus'' is a genus of trilobites from Russia and Morocco, from the middle Ordovician.
Species included in this genus can reach a length of about . They are without glabella and without articulation of the tail. The cephalon has a high profile and recurved genal spines. Eyes are distant from the axis of the head, situated nearer to the edge.〔(Archive.org )〕〔( Fossil Museum )〕
==Selected species==
This genus includes about 50 species:
*''Illaenus alveatus'' Raymond 1925
*''Illaenus auriculatus'' Ross, Jr. and Barnes 1967
*''Illaenus bayfieldi'' Billings 1859
*''Illaenus bucculentus'' Whittington 1963
*''Illaenus consimilis'' Billings 1865
*''Illaenus consobrinus'' Billings 1865
*''Illaenus crassicauda'' Wahlenberg 1826
*''Illaenus fraternus'' Billings 1865
*''Illaenus gelasinus'' Whittington 1965
*''Illaenus lacertus'' Whittington 1954
*''Illaenus marginalis'' Raymond 1925
*''Illaenus oscitatus'' Fortey 1980
*''Illaenus spiculatus'' Whittington 1963
*''Illaenus tauricornis'' (Kutorga 1848)
*''Illaenus tumidifrons'' Billings 1865
*''Illaenus utahensis'' Hintze 1952
〔 (The Paleobiology Database )〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Illaenus」の詳細全文を読む



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